No that was an mistake, i released it first on itch io and in my head i thought the last version was also 5.99
So no it will stay like this 4.99 will be the price.
Sorry for the money loss, i checked it on my version, the games saves after an upgrade and after pulling any pack.
Maybe i include a feature that saves more often, but by closing and repopening all your money is gone or just some of it?
Thanks for all the feedback